Window.



G. KAHN.

WINDOW.

APPLICATION FILED JULY 10, 1913.

1,101,187, Patented June 23, 1914.

2 SHEETS-SHEET 1.

iZg-a G. KAHN.

WINDOW.

APPLICATION FILED JULY 10, 1913.

Patented June 23, 1914.

2 SHEETSSHEET 2.

Ill/VENTOR WITNESSES:

GUSTAVE KAHN, 0F DETROIT, MICHIGAN.

WIN D OW.

Specification of Letters Patent.

Patented June 23, 1914.

. Application filed July 10, 1913. Serial N 0. 778,267.

To all whom it may concern:

Be it known that I, GUSTAVE KAHN, a citizen of the United States, and a resident of Detroit, in the county of Wayne and State of Michigan, have invented a new and Improved lVindow, of which the following 'is a specification.

This invention relates to the construction of windows, particularly to means for supporting ventilator sashes; and its object is to provide an eflicient and strong connection between the mainand ventilator portions of window sashes, which may be cheaply constructed, and which will admit of ready mounting and demounting of the ventilator portion of the window.

This invention consists specifically, in sei curing a flanged bar to the inner edges of the lower half of a window sash having an aperture in which aventilator sash is to be mounted and in forming the upper ends of said bar into concave seats; and in securing a similar bar around the outer edges of the upper half of said ventilator sash and so forming the lower ends of said second bar that these ends may act as trunnions for the ventilator sash and rest in said sea-ts.

It consists broadly in the combination of curved seats secured to the edges. of one sash and rounded trunnions on the edges of another sash, together with contact strips mounted on both sashes, 'one of said sashes being mounted in an aperture in the other In the accompanying drawings, Figure 1 is a front elevation ofa window constructed embodying the present invention. Fig. 2 is a perspective of a seat secured to themnor edge of anapertured window sash. Fig. 3 is a perspective of a trunnion secured to the outer edge of'a ventilator sash. Fig. 4

is a section on the line 44 of Fig. l on alarger scale. Fig. 5 is a rear view of one of the inner muntins of the main sash and the adjacent outer side bar of the pivoted sash. Fi 6 is a detail of the pivot.

imila'r reference characters refer to like parts throughout the severalviews.

' The sashes that embody this invention may be of any desired construction, those shown in the drawings being of the type shown in my prior Patent Number 1,018,503, dated February 27, 1912. The main sash consists of outer bars 5-'67 and 8, longitudinal cross bars 9 and 10, and the muntins 11 and 12. Within the opening between the bars 9, 1O, 11 and 12 is pivoted a ventilator sash coisisting of side bars 13 and 14, top

bar 15, bottom bar 16, muntin 17 and horizontal cross bar 18. It will be understood that the construction shown is merely an example and that the invent-ion may be embodied in a window whose main and ventilatorsashes are made up of any desired number of muntins and cross bars.

The side bars, top bars and bottom bars are shown formed of T bars, with flanges 20, against which channel bars are secured, preferably by rivets 21 extending through the webs 23 of the T bars and webs 22 of the channel bars. The flanges 24 of these channel bars are wider than the flanges 25, and the narrower flanges are in contact with the flanges 20 of the T bars. As stated before, these channel bars extend around the opening in the main sash, the lower bar 26 being secured to the main sash and the upper bar 27 to the pivoted sash. The upper ends of the lower bar 26 are cut to fit the cylindrical lower ends of the bar 27 on the pivoted sash, as shown in Figs. 2and 3, the wider flange 24 of the upper bar being preferably. bent to form the trunnions for the pivoted sash. The flange 24 is cut away at these points in order that it may pass the web 23 on the T bars, when the pivoted sash is swung out of the plane of the main sash. A screw 28 may be mounted in each of the muntins 11 and 12. When the sashes are completed, the bars 26 and 27 are secured to them and the ventilator or inner sash is mounted in position with its trunnions 29 resting in the seats 30 on the main sash.

The screws 28 are then turned in until they contact with the web 22 of the bar 27, just above the trunnions. As the flange 24 is cut-away at 29 at each sideof the pivoted sash, that portion of the bar 27 can pass the adjacent flange 20 of the muntin 11 or 12, and the inner sash can freely swing to the position indicated in Fig. 6.

It will be noticed in Fig. 6 that the bar 27 is no longer resting in the seat 30, but on the upper edge of the flange 24. The shoulders 31 (Fig. 3) adjacent the trunnions contact with the rear edge of the webs 23 of the adjacent muntins 11 and prevent the pivoted sash moving to the right in Fig. 6, while the screws 28 prevent movement in the opposite direction. When the sashes are in the positions shown in Fig. 6, the point of support is nearer the top bar 15 than when in the positions shown in Fig. 4. -As a result, the pivoted sash is more inclined to swing to vertical position.

bars contactin Referring now to Fig. 4, it will be noted from the dotted lines, which are drawn from the center of the trunnions and seats, that when the pivoted sash swings from inclined to upright position, the flange 25 of the upper channel bar 27 will contact with the inwardly projecting flanges 20 of the upper portions of the muntins 11 and 12 and of the top cross bar 10; that the flange 24 of this channel bar will contact with the rear edges of the webs 23 of these members 10, 11 and 12; that the rear edges of the webs of the lower cross bar 16 and the webs of the lower halves of the muntins 13 and 14; of the pivoted sash will contact with the flange 9A of the lower channel bar 26; and that the outwardly extending flanges 20 of these bars 13, 14 and 16 will contact with the flange 25 of this lower channel bar. This results in a double contact all around the pivoted sash, and; prevents rain and snow from passing between the sashes.

Many changes in the construction of this window maybe madeby those skilled in this art without departing from the spirit of my invention as set forth in the following claims.

I claim- 1. In a window, the combination of an apertured main sash having a flange extending into the aperture at all sides, a ventilator sash within the aperture and having an exterior flange in'the same plane as the flange on the main sash, a channel bar extending partially around within said aperture and secured to the main sash and having its ends forming bearings, and a second channel bar extending partially around and secured to the outside of the ventilator sash above the ends of the other bar and having its lower ends forming pivots for said ventilator sash which restin said bearings.

2. In a window, the combination of a main sash having an aperture, a ventilator sash within the aperture, a channel bar secured to the main sash within the aperture and a second channel bar secured to the outer edges of the ventilator sash, the ends of said bars forming pivots and bearings for said ventilator sash.

3. In a window, the combination of a main sash having an aperture, a ventilator sash within the aperture, a flanged bar secured to the main sash within the aperture and a second flanged bar secured to the outer edges of the ventilator sash, the ends of said and forming pivots and bearings for said ventilator sash.

4. In a window, the combination of a main sash having an aperture, a ventilator sash within the aperture, a flanged bar secured to the main sash within the aperture and a second flanged bar secured to the outer edges of the ventilator sash, the ends of said bars contactingand forming pivots and bearings for said ventilator sash, and a screw mounted in the main sash on each side of the ventilator sash and engaging said ventilator sash to position it. I

5. In a window, the combination of a main frame formed with an aperture, a sash pivoted within the aperture, channel bars between the sides of the sash and the frame, the channel bar at each side consisting of two sections, one section being attached to the sash and the other to the frame, the ends of the sections contacting and forming bearings for the pivoted sash.

6. In a window, the combination of a main frame formed with an aperture, a sash pivoted within the aperture, channel bars between the sides of the sash and the frame, the channel bar at each side consisting of two sections, one section being attached to the sash and the other to the frame, the ends of the sections contacting and forming bearings for the pivoted sash, the flanges of each section being of unequal width, and both flanges of each section adapted to contact with an opposite part of the window when the sash is in the plane of the main frame.

7. In a window, the combination of a main frame formed with an aperture, a sash pivoted within the aperture, flanges on-the frame and sash extending toward each other, channel bars between the sides of the sash and the frame, the channel bar at each side consisting of two sections, one section being secured to the sash and the other to the frame, the ends of the sections contacting and forming bearings for the pivoted sash.

8. In a wlndow, the combination of a main frame formed with an aperture, a sash pivoted within the aperture, channel bars between the sides of the pivoted sash and frame, the channel bar at each side consist ing of two sections, one section secured to the main frame and the, other secured to the sash, the ends of said sections contacting and forming bearings for the pivoted sash, the flanges of each section being of unequal width, those on the main frame extending toward the pivoted sash and those on the pivoted sash extending toward the main frame, each of the flanges of. both sections contacting with an opposite part of the window when the pivoted sash is in the plane of the main frame.

In testimony whereof I have signed this specification in the presence of two subscrib- I-IUoo W. KREINBRING, E. WALTER KREINBRING. 

